一个周六晚上，卡恩斯全家都在客厅，为打印电路板手绘电路图。
On Saturday evening, the whole family gathered in the living room and inked in circuit diagrams, for making printed circuit boards.
一个周六晚上，卡恩斯全家都在客厅，为打印电路板手绘电路图。
On Saturday evening, the whole family gathered in the living room and inked in circuit diagrams, for making printed circuit boards.
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